Finding the Third Proportional to 917,856 and 1,968,471

Step by Step Solution

1. Step 1: Write the proportion equation
   917,856 : 1,968,471 = 1,968,471 : x
2. Step 2: Convert to fraction form
   917,856/1,968,471 = 1,968,471/x
3. Step 3: Cross multiply
   917,856x = 1,968,471 × 1,968,471
4. Step 4: Simplify right side
   917,856x = 3,874,878,077,841
5. Step 5: Solve for x
   x = 3,874,878,077,841/917,856
6. Step 6: Final answer
   x = 4,221,662.31